Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r082-smll-177946993500109.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is DBSingleClientW-PT-d0m07, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r082-smll-177946993500109
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 544K
-rw-r--r-- 1 mcc users 7.5K Mar 6 18:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 81K Mar 6 18:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Mar 6 18:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Mar 6 18:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:45 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 08:45 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 08:46 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:46 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.0K Mar 6 18:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 89K Mar 6 18:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.2K Mar 6 18:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 80K Mar 6 18:22 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:46 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:46 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 119K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-00
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-01
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-02
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-03
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-04
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-05
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-06
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-07
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-08
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-09
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-10
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-11
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-12
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-13
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-14
FORMULA_NAME DBSingleClientW-PT-d0m07-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779554203861

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DBSingleClientW-PT-d0m07
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-23 16:36:46] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-23 16:36:46] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 16:36:46] [INFO ] Load time of PNML (sax parser for PT used): 190 ms
[2026-05-23 16:36:46] [INFO ] Transformed 553 places.
[2026-05-23 16:36:46] [INFO ] Transformed 150 transitions.
[2026-05-23 16:36:46] [INFO ] Parsed PT model containing 553 places and 150 transitions and 600 arcs in 408 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 14 ms.
Deduced a syphon composed of 444 places in 3 ms
Reduce places removed 444 places and 0 transitions.
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-8094484237263273990.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-4892690159669017084.kers'
[2026-05-23 16:36:46] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-8094484237263273990.kers, --Pflows, --basisKERS=/tmp/petrispot-output-4892690159669017084.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 150 rows 109 cols 450 entries
Finished phase 1 with 59 SingleSign rule and 44 generalized
[2026-05-23 16:36:46] [INFO ] Computed 6 invariants in 1 ms
Computed 6 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-4892690159669017084.kers
Total runtime 3 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 1, 25]
RANDOM walk for 10000 steps (2284 resets) in 107 ms. (92 steps per ms)
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 20001 steps (1949 resets) in 76 ms. (259 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 2] Max Struct:[1, 25]
[2026-05-23 16:36:47] [INFO ] Invariant cache hit.
[2026-05-23 16:36:47] [INFO ] [Real]Absence check using 3 positive place invariants in 12 ms returned sat
[2026-05-23 16:36:47] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 9 ms returned sat
[2026-05-23 16:36:47] [INFO ] [Real]Absence check using state equation in 176 ms returned sat
[2026-05-23 16:36:47] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-23 16:36:47] [INFO ] [Real]Added 74 Read/Feed constraints in 40 ms returned sat
[2026-05-23 16:36:47] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 16:36:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 8 ms returned sat
[2026-05-23 16:36:47] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 4 ms returned sat
[2026-05-23 16:36:47] [INFO ] [Nat]Absence check using state equation in 105 ms returned sat
[2026-05-23 16:36:48] [INFO ] [Nat]Added 74 Read/Feed constraints in 41 ms returned sat
[2026-05-23 16:36:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 343 ms
[2026-05-23 16:36:48] [INFO ] Computed and/alt/rep : 39/69/39 causal constraints (skipped 110 transitions) in 48 ms.
[2026-05-23 16:36:48] [INFO ] Added : 6 causal constraints over 2 iterations in 130 ms. Result :sat
Minimization took 78 ms.
[2026-05-23 16:36:48] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-23 16:36:48] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 3 ms returned sat
[2026-05-23 16:36:48] [INFO ] [Real]Absence check using state equation in 106 ms returned sat
[2026-05-23 16:36:48] [INFO ] [Real]Added 74 Read/Feed constraints in 29 ms returned sat
[2026-05-23 16:36:48] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 16:36:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-23 16:36:48] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 4 ms returned sat
[2026-05-23 16:36:48] [INFO ] [Nat]Absence check using state equation in 86 ms returned sat
[2026-05-23 16:36:49] [INFO ] [Nat]Added 74 Read/Feed constraints in 24 ms returned sat
[2026-05-23 16:36:49] [INFO ] Computed and/alt/rep : 39/69/39 causal constraints (skipped 110 transitions) in 29 ms.
[2026-05-23 16:36:49] [INFO ] Added : 1 causal constraints over 1 iterations in 80 ms. Result :sat
Minimization took 48 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 2] Max Struct:[1, 25]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 2] Max Struct:[1, 25]
Support contains 2 out of 109 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 109/109 places, 150/150 transitions.
Graph (complete) has 332 edges and 109 vertex of which 102 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.2 ms
Discarding 7 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 0 with 6 rules applied. Total rules applied 7 place count 102 transition count 144
Discarding 24 places :
Symmetric choice reduction at 1 with 24 rule applications. Total rules 31 place count 78 transition count 96
Iterating global reduction 1 with 24 rules applied. Total rules applied 55 place count 78 transition count 96
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 56 place count 78 transition count 95
Discarding 12 places :
Symmetric choice reduction at 2 with 12 rule applications. Total rules 68 place count 66 transition count 83
Iterating global reduction 2 with 12 rules applied. Total rules applied 80 place count 66 transition count 83
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 82 place count 66 transition count 81
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 85 place count 63 transition count 75
Iterating global reduction 3 with 3 rules applied. Total rules applied 88 place count 63 transition count 75
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 89 place count 63 transition count 74
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 91 place count 61 transition count 71
Iterating global reduction 4 with 2 rules applied. Total rules applied 93 place count 61 transition count 71
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 95 place count 59 transition count 69
Iterating global reduction 4 with 2 rules applied. Total rules applied 97 place count 59 transition count 69
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 99 place count 59 transition count 67
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 100 place count 58 transition count 66
Iterating global reduction 5 with 1 rules applied. Total rules applied 101 place count 58 transition count 66
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 103 place count 58 transition count 64
Applied a total of 103 rules in 117 ms. Remains 58 /109 variables (removed 51) and now considering 64/150 (removed 86) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 134 ms. Remains : 58/109 places, 64/150 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-8125681067491255034.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9720013539694268339.kers'
[2026-05-23 16:36:49] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-8125681067491255034.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9720013539694268339.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 64 rows 58 cols 210 entries
Finished phase 1 with 53 SingleSign rule and 3 generalized
[2026-05-23 16:36:49] [INFO ] Computed 2 invariants in 4 ms
Computed 2 P flows in 5 ms.
Exported basis to /tmp/petrispot-output-9720013539694268339.kers
Total runtime 5 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 2] Max Struct:[1, 25]
RANDOM walk for 1000000 steps (228806 resets) in 1895 ms. (527 steps per ms)
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (101475 resets) in 970 ms. (1029 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[25]
[2026-05-23 16:36:52] [INFO ] Invariant cache hit.
[2026-05-23 16:36:52] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 16:36:52] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-23 16:36:52] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-23 16:36:52] [INFO ] [Real]Added 20 Read/Feed constraints in 6 ms returned sat
[2026-05-23 16:36:52] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 16:36:52] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 16:36:52] [INFO ] [Nat]Absence check using state equation in 33 ms returned sat
[2026-05-23 16:36:52] [INFO ] [Nat]Added 20 Read/Feed constraints in 4 ms returned sat
[2026-05-23 16:36:52] [INFO ] Computed and/alt/rep : 18/35/18 causal constraints (skipped 45 transitions) in 8 ms.
[2026-05-23 16:36:52] [INFO ] Added : 1 causal constraints over 1 iterations in 22 ms. Result :sat
Minimization took 22 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[25]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[25]
Support contains 1 out of 58 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 58/58 places, 64/64 transitions.
Applied a total of 0 rules in 6 ms. Remains 58 /58 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 58/58 places, 64/64 transitions.
[2026-05-23 16:36:52] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[25]
RANDOM walk for 1000000 steps (229536 resets) in 1152 ms. (867 steps per ms)
BEST_FIRST walk for 1000001 steps (102108 resets) in 450 ms. (2217 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4] Max Struct:[25]
[2026-05-23 16:36:54] [INFO ] Invariant cache hit.
[2026-05-23 16:36:54] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 16:36:54] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-23 16:36:54] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-23 16:36:54] [INFO ] [Real]Added 20 Read/Feed constraints in 10 ms returned sat
[2026-05-23 16:36:54] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 16:36:54] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 16:36:54] [INFO ] [Nat]Absence check using state equation in 43 ms returned sat
[2026-05-23 16:36:54] [INFO ] [Nat]Added 20 Read/Feed constraints in 7 ms returned sat
[2026-05-23 16:36:54] [INFO ] Computed and/alt/rep : 18/35/18 causal constraints (skipped 45 transitions) in 13 ms.
[2026-05-23 16:36:54] [INFO ] Added : 1 causal constraints over 1 iterations in 35 ms. Result :sat
Minimization took 37 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4] Max Struct:[25]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4] Max Struct:[25]
Support contains 1 out of 58 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 58/58 places, 64/64 transitions.
Applied a total of 0 rules in 10 ms. Remains 58 /58 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 58/58 places, 64/64 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 58/58 places, 64/64 transitions.
Applied a total of 0 rules in 9 ms. Remains 58 /58 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-23 16:36:54] [INFO ] Invariant cache hit.
[2026-05-23 16:36:54] [INFO ] Implicit Places using invariants in 149 ms returned []
[2026-05-23 16:36:54] [INFO ] Invariant cache hit.
[2026-05-23 16:36:54] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-23 16:36:54] [INFO ] Implicit Places using invariants and state equation in 222 ms returned []
Implicit Place search using SMT with State Equation took 374 ms to find 0 implicit places.
[2026-05-23 16:36:54] [INFO ] Redundant transitions in 1 ms returned []
Running 63 sub problems to find dead transitions.
[2026-05-23 16:36:54] [INFO ] Invariant cache hit.
[2026-05-23 16:36:54] [INFO ] State equation strengthened by 20 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/56 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/56 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 2 (OVERLAPS) 1/57 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/57 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 4 (OVERLAPS) 64/121 variables, 57/59 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/121 variables, 20/79 constraints. Problems are: Problem set: 0 solved, 63 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/121 variables, 1/80 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/121 variables, 0/80 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 8 (OVERLAPS) 1/122 variables, 1/81 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/122 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 10 (OVERLAPS) 0/122 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 63 unsolved
No progress, stopping.
After SMT solving in domain Real declared 122/122 variables, and 81 constraints, problems are : Problem set: 0 solved, 63 unsolved in 3763 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 58/58 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 63/63 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 63 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/56 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/56 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/56 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 3 (OVERLAPS) 1/57 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/57 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 5 (OVERLAPS) 64/121 variables, 57/60 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/121 variables, 20/80 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/121 variables, 59/139 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/121 variables, 0/139 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 9 (OVERLAPS) 1/122 variables, 1/140 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/122 variables, 4/144 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/122 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 12 (OVERLAPS) 0/122 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 63 unsolved
No progress, stopping.
After SMT solving in domain Int declared 122/122 variables, and 144 constraints, problems are : Problem set: 0 solved, 63 unsolved in 11051 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 58/58 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 63/63 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 14933ms problems are : Problem set: 0 solved, 63 unsolved
Search for dead transitions found 0 dead transitions in 14943ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15363 ms. Remains : 58/58 places, 64/64 transitions.
[2026-05-23 16:37:09] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4] Max Struct:[25]
RANDOM walk for 1000000 steps (229279 resets) in 1236 ms. (808 steps per ms)
BEST_FIRST walk for 1000000 steps (102725 resets) in 478 ms. (2087 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4] Max Struct:[25]
[2026-05-23 16:37:11] [INFO ] Invariant cache hit.
[2026-05-23 16:37:11] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 16:37:11] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2026-05-23 16:37:11] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-23 16:37:11] [INFO ] [Real]Added 20 Read/Feed constraints in 7 ms returned sat
[2026-05-23 16:37:11] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 16:37:11] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 16:37:11] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2026-05-23 16:37:11] [INFO ] [Nat]Added 20 Read/Feed constraints in 4 ms returned sat
[2026-05-23 16:37:11] [INFO ] Computed and/alt/rep : 18/35/18 causal constraints (skipped 45 transitions) in 7 ms.
[2026-05-23 16:37:11] [INFO ] Added : 1 causal constraints over 1 iterations in 21 ms. Result :sat
Minimization took 25 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4] Max Struct:[25]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4] Max Struct:[25]
Support contains 1 out of 58 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 58/58 places, 64/64 transitions.
Applied a total of 0 rules in 6 ms. Remains 58 /58 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 58/58 places, 64/64 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 58/58 places, 64/64 transitions.
Applied a total of 0 rules in 5 ms. Remains 58 /58 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-23 16:37:11] [INFO ] Invariant cache hit.
[2026-05-23 16:37:11] [INFO ] Implicit Places using invariants in 65 ms returned []
[2026-05-23 16:37:11] [INFO ] Invariant cache hit.
[2026-05-23 16:37:11] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-23 16:37:11] [INFO ] Implicit Places using invariants and state equation in 149 ms returned []
Implicit Place search using SMT with State Equation took 216 ms to find 0 implicit places.
[2026-05-23 16:37:11] [INFO ] Redundant transitions in 0 ms returned []
Skipped dead transition search.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 231 ms. Remains : 58/58 places, 64/64 transitions.
RANDOM walk for 40000 steps (9105 resets) in 745 ms. (53 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40001 steps (4064 resets) in 210 ms. (189 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (3970 resets) in 224 ms. (177 steps per ms) remains 2/2 properties
[2026-05-23 16:37:12] [INFO ] Flatten gal took : 57 ms
[2026-05-23 16:37:12] [INFO ] Flatten gal took : 26 ms
[2026-05-23 16:37:12] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1049761048712814798.gal : 10 ms
[2026-05-23 16:37:12] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3195600602495653185.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality1049761048712814798.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3195600602495653185.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality3195600602495653185.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 22
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :22 after 74
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :74 after 150
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :150 after 340
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :340 after 1308
Invariant property MIN0 does not hold.
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :1308 after 7390
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :7390 after 10636
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :10636 after 23738
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :23738 after 68036
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :68036 after 205934
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :205934 after 486152
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,744824,0.798459,18496,2,6143,18,55862,7,0,297,54962,0
Total reachable state count : 744824

Verifying 2 reachability properties.
Reachability property MAX0 does not hold.
No reachable states exhibit your property : MAX0

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,0,0.800744,18632,1,0,18,55862,7,0,298,54962,0
Invariant property MIN0 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,20,0.801705,18676,2,108,18,55862,8,0,300,54962,0
Probably explored full state space saw : 744663 states, properties seen :1
Probabilistic random walk after 1921183 steps, saw 744663 distinct states, run finished after 2108 ms. (steps per millisecond=911 ) properties seen :1
Explored full state space saw : 744824 states, properties seen :0
Exhaustive walk after 1921499 steps, saw 744824 distinct states, run finished after 1899 ms. (steps per millisecond=1011 ) properties seen :0
Current structural bounds on expressions (after reachability check) : Max Seen:[5] Max Struct:[24]
[2026-05-23 16:37:16] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5] Max Struct:[24]
RANDOM walk for 1000000 steps (229566 resets) in 1059 ms. (943 steps per ms)
BEST_FIRST walk for 1000000 steps (102709 resets) in 516 ms. (1934 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5] Max Struct:[24]
[2026-05-23 16:37:17] [INFO ] Invariant cache hit.
[2026-05-23 16:37:17] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 16:37:17] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2026-05-23 16:37:17] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-23 16:37:17] [INFO ] [Real]Added 20 Read/Feed constraints in 6 ms returned sat
[2026-05-23 16:37:17] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 16:37:17] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 16:37:17] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2026-05-23 16:37:17] [INFO ] [Nat]Added 20 Read/Feed constraints in 4 ms returned sat
[2026-05-23 16:37:17] [INFO ] Computed and/alt/rep : 18/35/18 causal constraints (skipped 45 transitions) in 8 ms.
[2026-05-23 16:37:18] [INFO ] Added : 1 causal constraints over 1 iterations in 26 ms. Result :sat
Minimization took 23 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5] Max Struct:[24]
Support contains 1 out of 58 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 58/58 places, 64/64 transitions.
Applied a total of 0 rules in 5 ms. Remains 58 /58 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 58/58 places, 64/64 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 58/58 places, 64/64 transitions.
Applied a total of 0 rules in 5 ms. Remains 58 /58 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-23 16:37:18] [INFO ] Invariant cache hit.
[2026-05-23 16:37:18] [INFO ] Implicit Places using invariants in 83 ms returned []
[2026-05-23 16:37:18] [INFO ] Invariant cache hit.
[2026-05-23 16:37:18] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-23 16:37:18] [INFO ] Implicit Places using invariants and state equation in 153 ms returned []
Implicit Place search using SMT with State Equation took 238 ms to find 0 implicit places.
[2026-05-23 16:37:18] [INFO ] Redundant transitions in 1 ms returned []
Skipped dead transition search.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 249 ms. Remains : 58/58 places, 64/64 transitions.
[2026-05-23 16:37:18] [INFO ] Flatten gal took : 37 ms
RANDOM walk for 40000 steps (9110 resets) in 229 ms. (173 steps per ms) remains 2/2 properties
[2026-05-23 16:37:18] [INFO ] Flatten gal took : 31 ms
[2026-05-23 16:37:18] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7199473214859225568.gal : 7 ms
[2026-05-23 16:37:18] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2451890008536179374.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality7199473214859225568.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2451890008536179374.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (4139 resets) in 96 ms. (412 steps per ms) remains 2/2 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality2451890008536179374.prop.
BEST_FIRST walk for 40003 steps (3955 resets) in 77 ms. (512 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 22
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :22 after 74
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :74 after 150
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :150 after 340
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :340 after 1308
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :1308 after 7390
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :7390 after 16374
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :16374 after 55490
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :55490 after 190486
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :190486 after 482072
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,744824,0.606656,18536,2,6143,16,55717,8,0,298,54961,0
Total reachable state count : 744824

Verifying 2 reachability properties.
Reachability property MAX0 does not hold.
No reachable states exhibit your property : MAX0

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,0,0.608667,18580,1,0,16,55717,8,0,299,54961,0
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.610902,18716,1,0,16,55717,8,0,299,54961,0
Interrupted probabilistic random walk after 862396 steps, run timeout after 3001 ms. (steps per millisecond=287 ) properties seen :0 out of 2
Probabilistic random walk after 862396 steps, saw 346009 distinct states, run finished after 3006 ms. (steps per millisecond=286 ) properties seen :0
FORMULA DBSingleClientW-PT-d0m07-UpperBounds-15 5 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (after reachability check) : Max Seen:[] Max Struct:[]
[2026-05-23 16:37:21] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[] Max Struct:[]
RANDOM walk for 1000000 steps (229070 resets) in 863 ms. (1157 steps per ms)
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 36146 ms.

BK_STOP 1779554242358

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="DBSingleClientW-PT-d0m07"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool itstools"
echo " Input is DBSingleClientW-PT-d0m07, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r082-smll-177946993500109"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DBSingleClientW-PT-d0m07.tgz
mv DBSingleClientW-PT-d0m07 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "UpperBounds.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;